Lesson 9 of 84 · Economics
⭐ 30 XP⚓ Market PortTrade and Barter
Trade is exchanging goods and services.
🎯 Your mission
Trade-offs everywhere — find them.
⚡ The twist
Cheap for you usually means expensive for someone else.
Mind = Blown
🤯 The first ATM was installed in 1967 — and used radioactive ink.
Then & Now
💱 Every receipt you've ever seen has this idea inside it.
Trade is exchanging goods and services. No person, community, or country can produce everything they need, so trade allows everyone to benefit from specialization.
Key Facts
Money is a medium of exchange.
Needs are different from wants.
Supply and demand affect prices.
Check Your Understanding
Question 1
1 of 2What is trade?
Why this still matters
The next time you spend $1, ask: who else benefited besides you?
Stretch Challenge
Try this in real life this week.
Track every dollar you spend or get this week. Then figure out the pattern.
For the dinner table
“If you had $20 to start a business, what would you sell?”
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Trade and Barter
Trade-offs everywhere — find them.
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